/* $OpenBSD: limits.h,v 1.6 2005/12/13 00:35:23 millert Exp $ */
/*
 * Copyright (c) 2002 Marc Espie.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef _SYS_LIMITS_H_
#define _SYS_LIMITS_H_

#include <sys/cdefs.h>
#ifndef __LITEOS__
#include <linux/limits.h>
#else
#include <liteos/limits.h>
#endif

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/* Common definitions for limits.h. */

#define    CHAR_BIT    8        /* number of bits in a char */

#define    SCHAR_MAX    0x7f        /* max value for a signed char */
#define SCHAR_MIN    (-0x7f-1)    /* min value for a signed char */

#define    UCHAR_MAX    0xffU        /* max value for an unsigned char */
#ifdef __CHAR_UNSIGNED__
# define CHAR_MIN    0        /* min value for a char */
# define CHAR_MAX    0xff        /* max value for a char */
#else
# define CHAR_MAX    0x7f
# define CHAR_MIN    (-0x7f-1)
#endif

#define    USHRT_MAX    0xffffU        /* max value for an unsigned short */
#define    SHRT_MAX    0x7fff        /* max value for a short */
#define SHRT_MIN        (-0x7fff-1)     /* min value for a short */

#define    UINT_MAX    0xffffffffU    /* max value for an unsigned int */
#define    INT_MAX        0x7fffffff    /* max value for an int */
#define    INT_MIN        (-0x7fffffff-1)    /* min value for an int */

#ifdef __LP64__
# define ULONG_MAX    0xffffffffffffffffUL
                    /* max value for unsigned long */
# define LONG_MAX    0x7fffffffffffffffL
                    /* max value for a signed long */
# define LONG_MIN    (-0x7fffffffffffffffL-1)
                    /* min value for a signed long */
#else
# define ULONG_MAX    0xffffffffUL    /* max value for an unsigned long */
# define LONG_MAX    0x7fffffffL    /* max value for a long */
# define LONG_MIN    (-0x7fffffffL-1)/* min value for a long */
#endif

#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999
# define ULLONG_MAX    0xffffffffffffffffULL
                    /* max value for unsigned long long */
# define LLONG_MAX    0x7fffffffffffffffLL
                    /* max value for a signed long long */
# define LLONG_MIN    (-0x7fffffffffffffffLL-1)
                    /* min value for a signed long long */
#endif

#if __BSD_VISIBLE
# define UID_MAX    UINT_MAX    /* max value for a uid_t */
# define GID_MAX    UINT_MAX    /* max value for a gid_t */
#endif


#ifdef __LP64__
# define LONG_BIT    64
#else
# define LONG_BIT    32
#endif

/* float.h defines these as well */
# if !defined(DBL_DIG)
#  if defined(__DBL_DIG)
#   define DBL_DIG    __DBL_DIG
#   define DBL_MAX    __DBL_MAX
#   define DBL_MIN    __DBL_MIN

#   define FLT_DIG    __FLT_DIG
#   define FLT_MAX    __FLT_MAX
#   define FLT_MIN    __FLT_MIN
#  else
#   define DBL_DIG    15
#   define DBL_MAX    1.7976931348623157E+308
#   define DBL_MIN    2.2250738585072014E-308

#   define FLT_DIG    6
#   define FLT_MAX    3.40282347E+38F
#   define FLT_MIN    1.17549435E-38F
#  endif
# endif

/* Bionic: the following has been optimized out from our processed kernel headers */

#ifndef __LITEOS__
#define  CHILD_MAX   999
#define  OPEN_MAX    256
#else
#define  CHILD_MAX   6
# ifdef LOSCFG_FS_VFS
#define OPEN_MAX    CONFIG_NFILE_DESCRIPTORS
# else
#define  OPEN_MAX    255
# endif
#endif

/* Bionic-specific definitions */

#define  _POSIX_VERSION             200809L   /* Posix C language bindings version */
#define  _POSIX2_VERSION            -1        /* we don't support Posix command-line tools */
#define  _XOPEN_VERSION             700       /* by Posix definition */

#ifndef __LITEOS__
#define PTHREAD_DESTRUCTOR_ITERATIONS 4     // >= _POSIX_THREAD_DESTRUCTOR_ITERATIONS
#define PTHREAD_KEYS_MAX              128   // >= _POSIX_THREAD_KEYS_MAX
#define PTHREAD_THREADS_MAX           2048  // bionic has no specific limit
#endif

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif
